/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
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package ai.h2o.sparkling.ml.models

import ai.h2o.sparkling.ml.utils.Utils
import hex.genmodel.easy.EasyPredictModelWrapper
import org.apache.spark.sql.Row
import org.apache.spark.sql.types._

trait PredictionWithStageProbabilities {
  protected def getStageProbabilitiesSchema(model: EasyPredictModelWrapper): DataType = {
    val valueType = ArrayType(DoubleType, containsNull = false)
    val stageProbabilityFields = model.getResponseDomainValues.map(StructField(_, valueType, nullable = false))
    StructType(stageProbabilityFields)
  }
}
